I have had about 4 renewals on my VISA with no issues. Visited the US for work and vacation. I was still a widower when I had my last renewal and I updated my application as widower at that time of applying. I can't reallly point to anything that could be a flag. I have not received an RFE. So maybe like you said, the country of origin could be playing a part. I was of the opinion based on some resource I have come across that wait times is 120 days after interview but having gone 7 months now is kind of unusual, reason I was pushing it out to the group to know if this is normal trend these days